2121103011323 has 8 divisors (see below), whose sum is σ = 2160572794800. Its totient is φ = 2081750524128.

The previous prime is 2121103011289. The next prime is 2121103011347. The reversal of 2121103011323 is 3231103011212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121103011323 - 2⁸ = 2121103011067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121103011295 and 2121103011304.

It is not an unprimeable number, because it can be changed into a prime (2121103011373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29287568 + ... + 29359901.

It is an arithmetic number, because the mean of its divisors is an integer number (270071599350).

Almost surely, 2^{2121103011323} is an apocalyptic number.

2121103011323 is a deficient number, since it is larger than the sum of its proper divisors (39469783477).

2121103011323 is an equidigital number, since it uses as much as digits as its factorization.

2121103011323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58648141.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2121103011323 its reverse (3231103011212), we get a palindrome (5352206022535).

The spelling of 2121103011323 in words is "two trillion, one hundred twenty-one billion, one hundred three million, eleven thousand, three hundred twenty-three".